It is suggested that finasteride can treat alopecia, and the hair follicle contains Ⅱ 5α-reductase. In male patients with alopecia, the hair follicles in bald area and scalp become smaller and dihydrotestosterone increases. The concentration of dihydrotestosterone in scalp and serum decreased after finasteride administration. These data and research results confirm that finasteride can inhibit the scalp hair follicle from becoming smaller and reverse the process of hair loss.
Weijie Xu Hebei Provincial People's Hospital
dermatology
Certified doctor